The Feil Organization, one of the leading building development and management firms in New York City, has hired Sydness Architects to be its exclusive, on-call architect for two landmark properties, 570 Lexington Ave. (formerly known as the General Electric Building) and the Fred F. French Building at 551 Fifth Ave. "We're delighted that the Feil Organization chose us to work with potential tenants who are considering spaces in these very attractive, landmark properties," said George Chin, AIA, LEED AP, the firm principal who is working with Feil. Sydness Architects came to the Feil Organization's attention with the design of The Teagle Foundation offices at 570 Lexington Ave. "The quality of our design and our quick turn-around sold them on hiring us," said Chin. "And we have been designing tenant test-fits since then. We're demonstrating how tenants will get the most out of the variety of spaces available."